Improvement in lamps



HUNTER 61 BLEWITT.

Lamp.

No. 83,711. Patented Nov. 3, 1868.

k M Km) (H lump.

THOMAS A. HUNTER AND JOHN Letters Patent No. 83,711,

BLEWITT, or NEW YORK, N. Y.

dated November 3, 1868.

IMPROVEMENT IN LAMPS.

The Schedule referred to in these Letters Patent and making part of thesame.

To all whom it may concern.-

Be it known that we, THOMAS A. HUNTER and J OHN BLEWITT, of the city andState of New York, have invented, made, and applied touse a certain newand useful Improvement in Lamps; and we do hereby declare the followingto be a full, clear, and exact description of the said invention,reference being bad to the annexed drawing, makingpart of thisspecification, wherein- Figure 1 is a vertical section of the said lamp,and

Figure 2 is a plan of the same.

Similar letters. denote like parts.

Lamps have heretofore been made with a screwstopper in the bottom, sothat the fountain had to be inverted for filling.

Our invention relates to this class of lamps, and consists in perforatedpartitions, introduced in the fountain in such a manner as toveifectually prevent the passage of flame to the vapors that mayaccumulate in the fountain, and at the same time aid in regulating thesupply of oil to the burner. \Ve also form a depression in the upperpart of the lamp, to receive the collar of the burner, in order that thefountain may be partially above the burner, and hence supply the oil ina more reliable manner. And we provide the lamp with a handle, of acharacter adapted to set into or upon a bracket, so that om improvedlamp may be used as a portable hand-lamp, or be sustained by its handleupon a bracket.

In the drawing, a. is the fountain or reservoir, of suitable size,fitted with a screw-plug, b, to allow the fountain to be filled wheninverted.

c is a depression in the upper portion of the fountain, so that thescrew-collar d forethe burner may be some distance below the upper partof the fountain, and thereby there is a space for oil above the saidburner, which oil gradually passes down as air'bubbles 'up into thefountain.

The cylinder 0 extends nearly to the bottom of the reservoir or fountaina, and is covered with a screen of perforated sheet-metal or wire gauze,so that the oil may be admitted to said cylinder 0, but no flame couldby any possibility pass into the fountain.

The air will pass gradually from the lower end of this cylinder 0, intothe fountain, as the oil is consumed from said cylinder 0, and as anadditional protection against the passage of flame to the upper part ofthe fountain, and to comminute the bubbles of air as they pass into thatpart of the fountain, we make use of the division j, that extends fromthe depressed portion 0 of the fountain to the bottom thereof, or nearlyso. This partition is to be formed of sheet-metal, with fineperforations, or with a narrow vertical slot, to allow the air to passthrough.

The handle g is made or attached at one side of the reservoir a, and weprovide a bracket, h, of a size and shape suited to receive the saidhandle and sustain the lamp.

\Ve have shown the bracket h, with a fork, h, tak ing notches in thesides of the handle, but the said bracket might be made with a pin totake a socket in the handle, so that the latter might he slipped overthe former. I

hat we claim, and desire to secure by'Letters Patent, is-

1. The fountain (1, provided with the plug 12 in the bottom, forfilling, in combination with the cylinder e, that is tightly attached atits upper end to the fountain a, and provided with a foraminous bottom,as and forthe purposes specified.

2. The fountain a, formed with a depression in its upper surface, forreceiving the collar of the burner, as and for the purposes specified.

3. The handle, formed so as to set upon the bracket 72, and support thelamp, or be removable therefrom, as set forth.

In witness whereof, we have hereunto set our signa tures, this 21st dayof August, 1868.

THOMAS A. HUNTER.

\Vitnesses: JOHN BLEWITT.

Guns. H. SMITH,

Gno. T. Pmomvnr.

